Slotting-machine



m H, L. BINSSE & A. J. FRITH- SLOTTING MACHINE.

N0. 411,884. Patented 001;. 1, 1889 Q 111: mum mmmfln WITNESSES:

ATTORNEYS.

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UNITED STATES PATENT OFFICE,

HENRY L. BINSSE, OF NElV YORK, N. Y., AND AR'IHUR J. FRITH, OF NEWARK, NEW JERSEY.

SLOTTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 411,884, dated Gctober 1, 1889.

Application filed July 21,1888. Serial No. 280,655 (No model.)

To all whom it nmy concern.-

Be it known that we, HENRY L. BINssE and ARTHUR J. FRITH, citizens of the United States, residing, respectively, at New York, county and State of New York, and at Newark, in the county of Essex and State of New .leisey, have invented certain new and useful Improvements in Slotting Machine Tools; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to the machine-tool known as the slotter, and the object of the invention is to secure a greater degree of rigidity in the slide in which the ram is reciprocated. Heretofore it has been common to tended path; and the present invention consists, partly, in the combination, with the upper bracket and the foot of the slide, of an auxiliary bracket interposed between the crank-bearing and the foot to re-enforce the slide adjacent to the foot.

The improvement also consists in a special construction for the seats upon the upper bracket with beveled edges, and in the combination, with the slide, of inclined ribs fitted to such beveled edges to grasp the same more firmly.

The invention will be understood by reference to the annexed drawings, in which- Figure l is a side elevation of a slotting machine provided with our improvements. Fig. 2 is a front elevation of the same, the ap= pearance of the slide in its lowest position be ing indicated by dotted lines in both figures.

Fig. 3 is a section on line y y in Fig.1; and Fig. 4 is a side elevation of the upper portion of the column, with brackets differently ribbed from those shown in Fig. 1.

h is the ram which carries the slotting-tool; e, the slide in which the ram is reciprocated; s, the crank-shaft, and s the crank, connected with the ram in the usual mannen 0 is the gearing, and p the driving-cone, for rotating the crank-shaft.

Some of the feed-gearing is also indicated in Fig. 1, as well as the carriage (Z upon which the work to be slotted would be fastened; but such details are not fully illustrated, as they form no part of our present invention.

'13 represents the bed of the machine, formed as a hollow casting, and Athe column,formed also as a hollow box rising vertically from the bed and tapered upward in cross-section to the crank-shaft s, where the column is curved toward the ram h, as in similar constructions. Adjacent to the crank s brackets c c are projected from the column upward and downward and extended beyond the vertical plane of the crank s to support the slide 6. The outer ends of the brackets are provided with seat s (Z d, to which is fitted the slide 6, the latter being provided with tongues or rabbets a, fitted to a corresponding recess in the two bracket-seats to guide the slide when adjusted. Bolts 17 are inserted through the seats upon the ends of the two brackets and are fitted to suitable slots Z) in the slide for clamping the slide firmly to thebrackets when adjusted.

In Fig. 3 is shown a special construction for holding the slide moresecurely upon the brackets by beveling the edges of the brackets parallel with the tongues a. and providing ribs 0' upon the edges of the slide fitted to the beveled edges of the seat. Such bevel-fitting operates, when the slide is clamped to the bracket by the bolts 1), to press the opposite edges of the seat inward toward one another and to pinch the edges of the tongues a, thus gripping the slide and seat together in the most rigid manner. The lower end of the slide is provided with a foot f, extended to the vertical front of the column A and fitted to flanges f, formed upon the front corners of the column f, to which flanges the foot may be firmly clamped by means of. gibs .g and bolts g when properly adjusted. r

The ram is fitted to move in the slide in the usual manner, and the slide is provided with a gib a: to takeup lost motion against the ram,and with a screw M, by which itmay be adjusted to and from the table D,so as to sustain or steady the ram and the tool.car-

I being shown outside of the lower bracket c.

The foot-and'slide are shown in their lowest position in dotted lines 6 in Figs. 1 and 2, in which position it is evident that the-slide and the ram would be stiffened by a connection with the 'column at three different points-namely,*by the seats d d and-the foot f. The seat (1 and the foot f thus furnish two points of support for the slide where the stiffness is most required, and as they would never be widely separated it is obvious that the lower end of the ram, to which the strain of cutting is wholly applied, would thus be braced ina most efficient manner.

Heretofore, when the movable slide, with a foot f, has been employed, there has been no provision for strengthening or bracing the slide between such foot and the crank s, and as the foot is necessarily movable upon the column it cannot be secured or clamped as rigidly thereto as if it were made integral therewith, like the bracket 0. The addition of such bracket tothe design thus furnishes an exceedingly rigid connection for the slide to the column near its lower end, where it is exclusively strained by the operation. of the tool, and the ram thus receives an additional support greater than that afforded by the foot itself.

The form of the brackets c c is immaterial, the brackets being shown each with a central rib and a flange intermediate to its edges in Fig. 1, and in Fig. i with the stiffening-rib disposed in a different manner to show a convenient modification.

A counter-balance l is shown connected with the ram by a link Z, and the upper bracket is therefore formed, as is usual, with an aperture between the opposite sides of the seat (1 to admit such link, thetongue a being inserted a little way into the aperture in When the slide is suchbraeket, but in the lower bracket being fitted merely toa suitable groove. 3 u

Having thus set forth our invention, what we claim herein is+- l. The combination, in a slotter having bed B, table D, andfcolumn A, with. crank-shaft s, j ournaled therein, as set forth, ofthe brackets c and c, projected from the column above and below the crank-shaft, the slide 6, fitted to seats d d upon the brackets and clamped thereto by bolts 1), and the foot f, attached to the lower end of the slide and fixed movably upon the front of the column, substantially as herein set forth.

2.. The combination, in a slotter having bed B, table D, and column A, with crank-shaft s, journ aled therein, as set forth,'ofthe,bra

ets c and c, projected from the colurhn and belowthe crank-shaft, the slide 6, i,

to seats 01 (1' upon the brackets and clai ed thereto by bolts 1), the foot f, projected rr 1, the lower end of the slide adjacent to the bracket 0' and clamped movably upon the front of the column, and the screw M, connecting the foot and the bracket'c to adjust the slide vertically, substantially as herein set forth.

3. The combination, in aslotter having bed B, table D, and column A, with crank-shaft s, journaled therein, as set forth, of the bra-ck? ets c and c, projected from the column above and below the crank-shaft, the slide 9, fitted to seats (1 (1 upon the brackets, and clamped thereto by bolts 1), the foot f, projected from the lower end of the slide, and formed with.

the flanges f adapted to move outside the bracket 0', the flanges f upon the front corners of the column, with the gibs g, and bolts g for clamping the same thereto, and the screw M, connecting the foot and the bracket 0', as and for the purpose set forth.

at. The combination, in a slotter havingbed B, table D, and column A, with crank-shaft s, journaled therein, as set forth, of the brackets c and a, projected from the column above and below the crank-shaft, the slide e, fitted to seats (I cl upon the brackets, and clamped thereto by bolts 1), the foot f, attached to the HENRY L. BINSSE.

ARTHUR J. FRITH.

\Vitnesses:

CHAS. E. BALDW'IN, THOMAS C. Pnovosr. 

